Internal-combustion engine



(No Model.)

J. SALTAR, Jr. INTERNAL COMBUSTION ENGINE.

'No. squee. Patented July 28; 1896.

WlTNESSEz INVENTOR:

.[pfijl Salt/11117:

- cylinder has been ignited by a device for pro- UNITED STATES PATENT OFFICE.

JOHN SALTAR, JR., on enieneo, ILLINOIS, A,SSIGNOR To THE or'ro GAS ENGINE WORKS, OFPHILADELPHIA, PENNSYLVANIA.

INTERNAL-COM su STION EN'GIN E.

SIECIFICATION forming part of Letters Patent No. 564,766 dated July 28, 1896.

Application 518a November 15,1895. Serlal'llo. aeaoso. (No modem To all whom it may concern: Beit known that I, J our: SALTAR, Jr. aciti zen of the United States, residing at Chicago,

device. Such engines are usually four-cycle engines, butmay be made double-acting, and

my invention hereinafter described is, not limited to a characteristic type in this regard.

Ileretofore the explosive mixture in the ducing an electric discharge or spark,'bya

jet of flame, or by a highly-heated ignition- ,tube exposed to the explosive mixture com-- pressed in the cylinder. My invention is notlimited'to either type of engine iii-this regard.- g

Ileretofore it hasbeen proposed 'to'govcm' the speed of an internal-combustion engine by controlling the action of the ignition device'by any'suitable governor mechanism. Thus in the patent of Winand, No. 507,315, an electric-spark igniter device 'is shown whose circuit is interrupted by the governor when the engine exceeds the desired speed, the opening of the circuit preventing the ignition'of the explosive mixture in the cylinder. Thepatent of Otto, No. 433,813, shows a governor mechanism acting-toclose communication between the cylinder and the i gnition-tube when the desired speed of the engine is exceeded, the explosion of the mixture within the cylinder being thereby prevented. This patent of Otto also shows an arrangement for, preventing or, suspending the action of the exhaust-valve at a time when the ignition device is prevented from eliecting the explosion ofthe mixture within the cylinder, such control of the exhaustvalve being dependent upon the pressure within the cylinder; that is to say, in the normal running of the engine the device for operating the exhaustvalve engages and opens it at the proper time, but when the desired speed of the engine is exceeded and the ignitionof the charg is prevented the relatively lower pressure in the cylinder at that time will prevent the engagementofithe' exhaust-valve-operating device with the exhaust-valve, and the exhaust-valve remains closed: The unexplodedmixture is therefore retained in the cylinder? and is nlter-' nately compressed and expanded by the following strokes of the piston until the speed has been so reduced as to permit the usual ignition of the charge, and then the relatively high pressure in the cylinder will effect the proper opening of the exhaust-valve.

My inventlon consists 1n an improved ,or'-

ganization of instrumentalities, comprisinga governor of suitable character, an ign tion device, anexhaust-valve, and means con,-

trolled by the governor-for simultaneously preventing or suspending-the actiorrofrt-heignition device and-the opening of theexengine is exceeded. I

In the case of an electrical igniter the governor may openthe circuit exterior to the electrodes or the separable contacts where haust-valve when the desired speed of the" the. electric spark is generated, or the sepurationpf movement of such .electrodes'mag,

by the governor, beprevented or suspend Where the ignition'ot theI-. eharge is efleeted by exposing a highly-heated ignition-tube or other highly-heated surface to the compressed explosive mixture in the cylinder, the action of the governor may be such asto occlude from the mixture the heated surface, and wherea 'jet of flame to which the explosive mixture is exposed is employed the governor.

may act to occlude the flame, or to prevent I its development in cases wherejntermit- .tentlydeveloped flame jets are used; or the operation may be otherwise than above indi cated, depending uponthe special style of ignition device.

.I have abovesuggested -the'usui al kinds ofignition devices that have generally been used. As above stated, the exhaust-valve .governor and the ignition device and exhaust- .95 may be of the usual type, or'it may of course v engines.

valve may be varied and adapted to particular makes or styles of internal-combustion The desirable features a. dadvantages incident to placing the ignition device and exhaust-valve both under the control of the governor will be appreciated by those skilled in the art. 4

In the accompanying drawing, which is an elevation of a vertical internal-combustion engine, I have shown my invention embodied in a practical and efiicient'form. Y

An eccentricA on a shaft geared .to half the speed of the crank-shaft A is pivotally connected to a link B, fulcruined on a pin or shaft B. A lever having three arms is also fulcrumedon thispin and isprovided with,

aback-stop S and'a spring 8, mounted on the link 13, that tends to press the three-armed lever' against the stop. One arm, 0, controls or actuates the exhaust-valve E at proper times,'-another, 0, controls or actuates the electricignition device I, and anoth er, 0', is engaged by the hit-or-miss device of a governor of any suitable type, of which G is the controlling arm or bar; The arm 0 carries a pawl c, normally held. against a pin 0 by-a spring 0', and the free end of the pawl is adapted to normally operate the movable part 2' of the electric igniter I. The movement of the part i may effect the separation of the electrodes to prod u'ce the spark to ignite the explosive mixture in the cylinder X, or may otherwise afiect the circuit of the igniter to render it effectual. The end of the governor-rod G is pivoted to a pendent pin g, pivoted at g to the llnkB and whose lower end engages or misses the end of the lever-arm 0 according to whether the governor-rod is sufficiently far to the left or not.

In the operation of the engine at or below the desired speed the pin 51 engages the arm 0 and the three-armed lever is moved with the link B and shaft B. The pawl on the arm 0 then clients the operation of the ignition device at the proper time,.and by'the strikes the drawn into engages the 2 does not arms 0 C respectively fail nition of th .tionare dee valve not being shown. increased speed of the en rod-G is drawn to the right and the pin 9 diaend of the arm Q, the lever C 0 move with the link B and the to effect the ig- 55 e charge in the cylinder and the opening ofthe exhaust-valve.

As the general details of operation ofengines of thi wellknown, further illustration and descripmed unnecessary.

I claim as my invention- 1. In an internal-combustion engine, the combination of an construction and s general class are igdition device, an 'exhaust-valve, a governor and means controlled 5 by the governorforprevcnting or suspending the action of both the ignitiondevic'e and exwhen the desired speed of the" ceeded, substantially asset forth. internal-combustion engine, the combination of an ignition device, an -ex-' haust-valve, a'governor, and n eratively connecting the gover device and exhaust-valve, such mechanism comprisinga movab e device norhan-stwalve engine is ex 2. In an the ignition mally controlled by the governor to effect the timely operation of the ignitio r disengaging ble device to exhaust-val the. governor from said mova prevent or-suspend the operation of the ig'nition device and exhaust-valve sired speed ve, and a device f0 stantially'as set forth.

In testimony w scribed my name.

Witnesses:

ADOL

B LUETHY.

iechanism opnor both with when the deof, the engine isexceeded, subhereof I ha we hereunto sub- JOHN sA'L'rAR, JR. 

